239686474321 has 8 divisors (see below), whose sum is σ = 273935991680. Its totient is φ = 205439105088.

The previous prime is 239686474277. The next prime is 239686474393. The reversal of 239686474321 is 123474686932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 239686474321 - 2¹¹ = 239686472273 is a prime.

It is a super-2 number, since 2×239686474321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239686474721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290376 + ... + 750793.

It is an arithmetic number, because the mean of its divisors is an integer number (34241998960).

Almost surely, 2^239686474321 is an apocalyptic number.

It is an amenable number.

239686474321 is a deficient number, since it is larger than the sum of its proper divisors (34249517359).

239686474321 is a wasteful number, since it uses less digits than its factorization.

239686474321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074063.

The product of its digits is 10450944, while the sum is 55.

The spelling of 239686474321 in words is "two hundred thirty-nine billion, six hundred eighty-six million, four hundred seventy-four thousand, three hundred twenty-one".